<html>
    <head>
        <meta content="text/html; charset=utf8"; http-equiv="content-type" />
    </head>
    <body>
        <h1>Hello</h1>
        <!-- action="/multipart" 目标地址 -->
        <form action="/multipart" method="post" enctype="multipart/form-data">
            <input type="file" name="file1">
            <input type="submit" value="上传">
        </form>
    </body>
</html>